Patents by Inventor Walter A. DiSalvo

Walter A. DiSalvo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4195634
    Abstract: A sanitary napkin including a stiffening means which because of its resilient properties enables the napkin to lie flat and help it to retain a large degree of its original configuration even after it is subjected to the type of compressive forces that occur during use, is disclosed.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: April 1, 1980
    Assignee: International Playtex, Inc.
    Inventors: Walter A. DiSalvo, Robert B. Cubitt, Francis J. Coury
  • Patent number: 4006110
    Abstract: A heavy duty built synthetic organic detergent powder is made without the need for phosphates or carbonates in the formulation thereof by preparing a base product, such as by spray drying an aqueous mix of an anionic synthetic organic detergent and alkali metal silicate, for example, a crutcher mix of higher linear alkyl benzene sulfonate, sodium silicate, sodium sulfate and water, in certain proportions, spraying a nonionic detergent onto the dry base and blending with it a powdered anti-redeposition agent. The product made is a free-flowing detergent of desired density and particle size and the process is readily effected in a tumbling drum or twin shell blender without producing excessive lumping or tackiness.
    Type: Grant
    Filed: May 13, 1974
    Date of Patent: February 1, 1977
    Assignee: Colgate-Palmolive Company
    Inventors: Edward J. Kenney, Frank R. Smith, Jr., Walter A. DiSalvo
  • Patent number: 3971726
    Abstract: Spray dried beads, having a low bulk density and high in alkali metal carbonate content and useful for post-treatment with additional amounts of nonionic detergent to produce a heavy duty detergent compositon of a bulk density in the range of 0.2 to 0.35 gram per milliliter, are made by admixing a small percentage of alkali metal soap of higher fatty acid with a 40-75% solids content aqueous crutcher mix comprising the alkali metal carbonate and up to about 2% by weight nonionic detergent heating the crutcher mix to F. and spray drying the mixture.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: July 27, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Frank R. Smith, Jr., Edward J. Kenney, Walter A. DiSalvo